I would like to introduce you Amateur Meteorological Society - citizens organisation (also known as AMS or "Amatérská meteorologická společnost" in Czech). Our Society was established in May 2012, after being oficially registered by Ministry of Interior.

- database of storm observations- observation of supercells and forming the database of supercell occurence in CZ and neighbouring countries- cloud to ground lightnings and their interaction with Earth surface- Transient Luminous Events

You are welcome on our IRC channel to share informations/photo/video about weather events, especially those which are taking place in CZ/PL border areas - and we will glady share same informations with you, if possible. You can find on IRC under nickname Verthandi.

Website dedicated to tornadoes and associated phenomena in Czech republic - http://www.tornada-cz.cz/ has just been re-launched with new content and design. Now it is really operated in cooperation of CHMI and AMS.